摘要
本文简要介绍了该区地质概况和古风化壳的产状。用各种方法测定了粘土矿物成分,依此将风化壳大致分为两个带,下带以伊利石-蒙脱石间层矿物为主,上带以高岭石为主。在风化壳上普遍有再沉积的高岭石粘土岩。最后对古风化壳的形成条件及其意义做了探讨。
This paper introduces briefly the geological setting and occurrence of weathering paleocrust.The composition of clay minerals was determined by various methods.On that basis the weathering crust is divided into two zones:the lower zone is composed mainly of interstratified illite-montmorillonite,and the upper zone is dominated by kaolinite.There commonly occur redeposited kaolinite clay rocks on the weathering crust.Finally the formational conditions of the weathering crust and its significance are discussed.
作者
冯宝华
黄家山
金太权
蒋忠惕
Fang Baohua;Huang Jiashan;Jin Taiquan;Jiang Zhangti(Institute of Mineral Deposits,MGMR,Beijing;562 Geological Research Party,MGMR,Sanhe,Hebei)
出处
《地质论评》
1987年第2期181-187,共7页
Geological Review
